High-Speed Video Analysis in a Conceptual Physics Class

Desbien, Dwain M.

doi:doi:10.1119/1.3628252

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The Physics Teacher -- September 2011 -- Volume 49, Issue 6, pp. 332

High-Speed Video Analysis in a Conceptual Physics Class

Dwain M. Desbien

Estrella Mountain Community College, Avondale, AZ

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Abstract

References (7)

Article Objects (3)

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The use of probe ware and computers has become quite common in introductory physics classrooms.¹ Video analysis is also becoming more popular and is available to a wide range of students through commercially available and/or free software.^2,3 Video analysis allows for the study of motions that cannot be easily measured in the traditional lab setting and also allows real-world situations to be analyzed. Many motions are too fast to easily be captured at the standard video frame rate of 30 frames per second (fps) employed by most video cameras. This paper will discuss using a consumer camera that can record high-frame-rate video in a college-level conceptual physics class. In particular this will involve the use of model rockets to determine the acceleration during the boost period right at launch and compare it to a simple model of the expected acceleration.

KEYWORDS and PACS

Keywords

acceleration, rockets, student experiments, video cameras

PACS

01.50.Pa

Laboratory experiments and apparatus
45.40.Gj

Ballistics (projectiles; rockets)
07.07.Hj

Display and recording equipment, oscilloscopes, TV cameras, etc.

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0031-921X (print)

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$abstract.society.value is a Member of CrossRef

American Association of Physics Teachers

ARTICLE DATA

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http://dx.doi.org/10.1119/1.3628252

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For example, R. K. Thornton and D. R. Sokoloff, “Learning motion concepts using real-time microcomputer-based laboratory tools,” Am. J. Phys. 58, 858–867 (Jan. 1990)AJPIAS000058000009000858000001. [ISI]
www.vernier.com/loggerpro.
www.cabrillo.edu/~dbrown/tracker.
exilim.casio.com.
www.nar.org/SandT/NARenglist.shtml.
For example, Ken Horst, “Model rocketry in the 21st-century physics classroom,” Phys. Teach. 42, 394–397 (Oct. 2004)PHTEAH000042000007000394000001.
www.nar.org/NARmrsc.html.

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Screen capture from Logger Pro. The accompanying TPT Online video clip shows the complete launch. [URL: http://dx.doi.org/10.1119/1.3628252.1][URL: http://dx.doi.org/10.1119/1.3628252.1 ]

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